Air Products and Chemicals Inc.
Air Liquide
Elme Messer Gaas AS
Iwatani Corporation
Kawasaki Heavy Industries
Ltd.
Linde plc
The Andhra Sugars Limited
TAIYO NIPPON SANSO CORPORATION
United Hydrogen
Universal Industrial Gases Inc.
Wuxi Yuantong Gas Co. Ltd
Ballard Power Systems Inc.
FuelCell Energy Inc.
FirstElement Fuel Inc.
Hydrogenics